Make sure we show a nice message when there is no default export (ver…

…cel#3400)
i8ramin · Dec 5, 2017 · 4be6a52 · 4be6a52
1 parent 48ed89f
commit 4be6a52
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/lib/router/router.js b/lib/router/router.js
@@ -199,6 +199,11 @@ export default class Router {
       }
 
       const { Component } = routeInfo
+
+      if (typeof Component !== 'function') {
+        throw new Error(`The default export is not a React Component in page: "${pathname}"`)
+      }
+
       const ctx = { pathname, query, asPath: as }
       routeInfo.props = await this.getInitialProps(Component, ctx)